public class FileDownLoadServlet extends HttpServlet{ @Override protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=gb2312"); String fileName = request.getParameter("fileName"); String filePath = request.getSession().getServletContext().getRealPath("temp/")+ "/"; response.reset(); response.setContentType("APPLICATION/OCTET-STREAM"); response.setHeader("Content-Disposition","attachment; filename="+fileName); FileInputStream fileInputStream = null; File file = null; ServletOutputStream out = response.getOutputStream(); try{ file = new File(filePath + fileName); fileInputStream = new FileInputStream(file); int i; byte[] buff = new byte[1024]; while ((i = fileInputStream.read(buff,0,buff.length)) != -1) { out.write(buff,0,i); } fileInputStream.close(); out.close(); }catch(java.lang.Exception e){ e.printStackTrace(); }finally{ if(file.exists()){ file.delete(); } } } }
servlet文件下载
filename为下载的文件名,获得文件路径后,则下载
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转载自javafu.iteye.com/blog/1964508
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